CN107009477A - A kind of production method without aldehyde light flame-retardant fiberboard - Google Patents
A kind of production method without aldehyde light flame-retardant fiberboard Download PDFInfo
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- CN107009477A CN107009477A CN201710253884.5A CN201710253884A CN107009477A CN 107009477 A CN107009477 A CN 107009477A CN 201710253884 A CN201710253884 A CN 201710253884A CN 107009477 A CN107009477 A CN 107009477A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2200/00—Wooden materials to be treated
- B27K2200/15—Pretreated particles or fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2240/00—Purpose of the treatment
- B27K2240/30—Fireproofing
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention discloses a kind of production method without aldehyde light flame-retardant fiberboard, grade including woodchip, screening, boiling softening, fiber separation, glue compounding and applying, dried, classified, shaping of mating formation, precompressed, hot pressing, turnover panel cooling, sanding, inspection, be put in storage technology of the package step, no aldehyde enhancing adhesive is applied with during the glue compounding and applying, applied amount is 30.0~50.0kg/m3, is applied on defibrator process fiber blow line by gear pump；Apply pulvis fire retardant during the dried, classified, applied amount is 120.0~135.0kg/m3, at drying duct blanking blower fan leading portion is from blower fan about 1.0m, complete to apply into dry fibers storehouse by the suction of blower fan graviational interaction and uniform divided flows.The present invention significantly improves the mechanical bonding strength of fiberboard, fiberboard environmental protection is assigned again without aldehyde and fire retardant performance, meet safe green environmentally friendly pursuit of an ideal of the people to household material, and there is the remarkable advantages such as water-fast lightweight, Environmental Safety, good stability of the dimension.
Description
Technical field
The invention belongs to wood fibre board's manufacturing technology field, and in particular to one kind of extremely-low density is fine without aldehyde light flame-retardant
Tie up the production method of plate.
Background technology
Light fiberboard is using wood fibre or other plant fiber as raw material, prepared by fiber, apply adhesive or
Other auxiliary agents, the density processed and be made is less than or equal to 450kg/m3 sheet material.
The density of usual fiberboard is between 0.45~0.90g/cm3, because the density of timber has exceeded 0.40g/cm3, plus
Upper adhesive or additive density are more than 1.0g/cm3, thus the blended sheet material being processed into it is difficult to realize be less than 0.6g/
Cm3 low-density.But it is small to proportion, with certain physical and mechanical property due to the rise of building decoration and fitment and furniture industry
Sheet material have the wider market demand.Part medium and high density fibre panel is replaced with low density fiberboard as non-structural furniture
And decorations sheet material, lumber consumption can be greatly reduced.
Roger M. Rowel, the lShuichi Kawai and Japan in the U.S. Masa fum i Inoue joint researches are adopted
With the fiber of acetylation process, with the fiber of steam treatment and the fiber not handled in any way, suppressing density is
0.2~0.5g/cm3 light fiberboard, finds in the case of density identical, through lightweight made from acetylation process fiber
Fiberboard ratio steam treatment and light fiberboard made from not making any processing have more preferable dimensional stability；Jiangsu Province, China
Great Sheng Ban industry Co., Ltd utilizes agricultural wastes wheat straw, applies isocyanates and is equipped with special process method again, has processed one
It is 0.36~0.45g/cm3 light fiberboards to plant product density.Northeast Forestry University utilizes timber Micro-wood Fiber process technology,
By the restructuring interleaving technology of fiber, the artificial board MLFB that a kind of density is 0.3~0.45g/cm3 is successfully manufactured that
(abbreviation micron thistle board), has started the precedent that light artificial board is studied in terms of raw material are microcosmic by China.
Light fiberboard made from above-mentioned use acetylation process fiber, though dimensional stability obtains big progress, production
Complex treatment process, difficulty realizes industrialization.Dasheng Board Mfg. Co., Ltd., Jiangshu Prov. utilizes agricultural wastes wheat straw, applies isocyanates
Light fiberboard is prepared through special process technology, although product reaches environmental protection without aldehyde, but isocyanates is expensive, market
It is difficult to receive, production process, which has the sheet material lower platen or steel band easy to stick tied, causes failure can not smoothly realize industrialization.Northeast
Forestry University MLFB plates achieve progress in terms of microcosmic principle, but fail to realize technology application or industrialization.Mesh
It is preceding not find domestic relevant without aldehyde light flame-retardant fiberboard and to realize the research report of industrialization.Light fiberboard falls within wooden
, there is flammable unsafe factor in material.According to《Code for fire prevention design of interior decoration of buildings GB50222-95》And《Public place hinders
Fire product and the requirement of component combustibility and mark GB 20286-2006》Regulation, each position of various buildings and important pivot
Decoration and finishing material (contain fitment) should have corresponding flame retardant rating, to eliminate disaster hidden-trouble, it is ensured that safety.For solution
Certainly above-mentioned technical bottleneck, exploitation is without aldehyde flame-retarded light plate and realizes that commercial application has important practical significance.
The content of the invention
It is an object of the invention to：Increasingly highlighted for current timber supply and demand contradiction, and part is replaced using low density fiberboard
Medium and high density fibre panel is huge as non-structural furniture and dalle market potential, while in view of conventionally employed three-aldehyde glue
Glutinous agent prepares light fiberboard and there is free formaldehyde release and inflammable uneasy congruent defect, and the present invention provides a kind of without the resistance of aldehyde lightweight
The manufacturing process of fiberboard is fired, for ease of successful implementation, also provides corresponding without the enhanced adhesive of aldehyde and pulvis fire retardant
Method of manufacturing technology.
To achieve these goals, the technical solution adopted by the present invention is as follows：
A kind of production method without aldehyde light flame-retardant fiberboard, is comprised the following steps that：Woodchip, screening, boiling softening,
Fiber separation, glue compounding and applying, dried, classified, shaping of mating formation, precompressed, hot pressing, turnover panel cooling, sanding, inspection grades, storage is packed,
No aldehyde enhancing adhesive is applied with during the glue compounding and applying, applied amount is 30.0~50.0kg/m3, in defibrator process fiber blow-off pipe
Applied on road by gear pump；During the dried, classified apply pulvis fire retardant, applied amount be 120.0~
135.0kg/m3, at drying duct blanking blower fan leading portion is from blower fan about 1.0m, sucks and uniformly divide by blower fan graviational interaction
It flow in dry fibers storehouse and completes to apply.The screening is absorbed using metal detection, removes iron tramp.
Currently preferred technical scheme is, described prepared without the enhanced adhesive of aldehyde by the raw material of following parts by weight and
Into：1.0~5.0 parts of 95.0~99.0 parts of waterborne polyurethane resin, acetone or ethylenediamine；Its preparation method is：By weight under normal temperature
Each component is well mixed by amount part proportioning, you can.
Further, the pulvis fire retardant is prepared from by the raw material of following parts by weight：Melamine cyanurate
55.0~70.0 parts, 20.0~40.0 parts of inorganic hypo-aluminum orthophosphate, 5~10.0 parts of talcum powder；Its preparation method is：First by weight
Each raw material is well mixed by proportioning, is re-fed into pulverizer and is crushed to the powder that mesh number is 200~400 mesh, granularity is 2.0~4.0 μm
End, you can.
Further, the waterborne polyurethane resin is opaque liquid, and solids content is 20.0~25.0%, and pH value is
6.0~7.0, electric charge is anion.
Further, the dried, classified step fiber moisture control is 7.5~9.5%.
Further, the pressing step rate control is 55.0~65.0%；The hot pressing is added using three sections
Pressure, hot pressing temperature is 170~200 DEG C, hot pressing time is 20.0~40.0S/mm.
In summary, present invention employs such scheme, have the advantages that：
（1）The present invention applies no aldehyde enhancing adhesive, the production of not only solving in process of production without aldehyde light fiberboard
It is middle product is produced free formaldehyde using addition three-aldehyde glue and pollute the problem of environment is with health of people is influenceed, biography is solved again
Formaldehyde-less fiber board manufacture of uniting needs supporting addition releasing agent using addition MDI resins, is otherwise difficult to the technology of industrialization production
Bottleneck problem.The product being made not only reaches the environmental protection function of being discharged without free formaldehyde of wood grade, meets people
To the environmentally friendly pursuit of an ideal of the safe green of building decoration and fitment and household material, and with lightweight is water-fast, high mechanical properties,
The remarkable advantages such as good stability of the dimension.
（2）The present invention is simple and easy to apply without pulvis fire retardant, manufacturing process is applied in aldehyde light fiberboard dried, classified step,
Apparatus for production line need not be changed, need to only add fire retardant application metering device can smoothly realize industrialization production, while because of resistance
Fire agent and use N-P-AL compound system schemes, assign wood fibre board excellent fire retardant performance, flame retardant rating can reach newly
The fire retardant B1-B/B1-C grades or old plant B1 grades of standard, and compared with using conventional flame retardant, produced with more burning
Speed and calory burning are low, the few remarkable advantage of burning smoke.
（3）The present invention can expand product in application fields such as packaging, decoration, finishings without aldehyde light flame-retardant fiberboard, solve
It is inflammable dangerous that traditional lightweight fiberboard is present, and is difficult to industrialize the technical bottleneck problem of steady production, reaches again
To saving wood raw material, alleviate the remarkable effects such as timber supply and demand contradiction.
Brief description of the drawings
Fig. 1 is process chart of the invention.
Embodiment
Below in conjunction with the accompanying drawing in present example, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, the scope of protection of the invention is belonged to.
A kind of production method without aldehyde light flame-retardant fiberboard, is comprised the following steps that：Woodchip, screening, boiling
Softening, fiber separation, glue compounding and applying, dried, classified, shaping of mating formation, precompressed, hot pressing, turnover panel cooling, sanding, inspection grade, are put in storage
Packaging.
Embodiment 1
1st, the preparation without the enhanced adhesive of aldehyde：It is prepared from without the enhanced adhesive of aldehyde by the raw material of following parts by weight：It is aqueous
4.0~5.0 parts of 95.0 parts of polyurethane resin, acetone or ethylenediamine；Its preparation method is：Each component is mixed by weight ratio
Uniformly, store standby.Wherein, the waterborne polyurethane resin be milky/micro- color opaque liquid, solids content be 20.0~
21.0%, pH value is 6.0~6.2, and electric charge is anion.
2nd, the preparation of pulvis fire retardant：Pulvis fire retardant is made up of the raw material of following parts by weight：Melamine cyanurate
65.0~70.0 parts, 35.0~40.0 parts of inorganic hypo-aluminum orthophosphate, 5.0 parts of talcum powder；Its preparation method is：First by weight ratio
Each raw material is well mixed, pulverizer is re-fed into and is crushed to the powder that mesh number is 200~300 mesh, granularity is 2.0~4.0 μm, is store
Deposit standby.
3rd, the production technology without aldehyde light flame-retardant fiberboard：Prepare and complete without the enhanced adhesive of aldehyde and pulvis fire retardant
Afterwards, according to the technological process of production of medium density fibre board (MDF), wood chip is peeled, screened（Metal detection absorbs, and removes iron tramp）, steam
Boil after softening, apply at defibrator fiber separation blow-off pipe without the enhanced adhesive of aldehyde, resin added is 30.0~35.0kg/
m3；Sorting process is dried in fiber after applying glue, fiber moisture control is 9.0~9.5%, in fiber drying whirlwind point
Before blanking blower fan after choosing at about 1m, by adding metering device to add pulvis fire retardant from facility, applied amount is 120.0kg/m3,
Fiber lay down is dressed up into type with spreading machine, slab is 55.0~65.0% through preformer precompressed, rate control, and slab is through mitre saw
Side is cut after long weigh, and hot press is delivered to by belt conveyer, and hot pressing temperature is 170~180 DEG C, and hot pressing time is 20.0S/
After hot-pressing processing, light flame-retardant board blank is made using three sections of pressurizations in mm, hot pressing, then cooled down through turnover panel,
Sanding processing after plate edging, stacking 24h, inspection is cut out to grade and get product after being put in storage packaging.
4th, light flame-retardant fiberboard is made in process above step, according to《GB/T17657-2013 wood-based plates and face artificial
Foliation performance test method》、《LY/T1718-2007 light fiberboards》And《GB8624-2012 construction materials and product combustion
Burn grading performance》Detected etc. standard.Testing result is as shown in table 1.
Table 1
Embodiment 2
1st, the preparation without the enhanced adhesive of aldehyde：It is prepared from without the enhanced adhesive of aldehyde by the raw material of following parts by weight：It is aqueous
98.0~99.0 parts of polyurethane resin, 1.0~2.0 parts of acetone；Its preparation method is：Each component is mixed equal by weight ratio
It is even, store standby.Wherein, the waterborne polyurethane resin be milky/micro- color opaque liquid, solids content be 23.0~
25.0%, pH value is 6.8~7.0, and electric charge is anion.
2nd, the preparation of pulvis fire retardant：Pulvis fire retardant is made up of the raw material of following parts by weight：Melamine cyanurate
62.5 parts, 30.0 parts of inorganic hypo-aluminum orthophosphate, 7.5 parts of talcum powder；Its preparation method is：First each raw material is mixed by weight ratio
Uniformly, it is re-fed into pulverizer and is crushed to the powder that mesh number is 300~400 mesh, granularity is 3.0~4.0 μm, stores standby.
3rd, the production technology without aldehyde light flame-retardant fiberboard：Prepare and complete without the enhanced adhesive of aldehyde and pulvis fire retardant
Afterwards, according to the technological process of production of medium density fibre board (MDF), wood chip is peeled, screened, boiling softening after, in defibrator fiber separation
Apply at blow-off pipe without the enhanced adhesive of aldehyde, resin added is 40.0~50.0kg/m3；Fiber after applying glue is dried point
Choosing is handled, and fiber moisture control at about 1m, is passing through before 7.5~8.0%, the blanking blower fan after the sorting of fiber drying whirlwind
From facility plus metering device addition pulvis fire retardant, applied amount is 130.0~135.0kg/m3, fiber lay down is dressed up with spreading machine
Type, slab is through preformer precompressed, and rate control is 55.0~65.0%, after slab cuts long weigh through mitre saw side, passes through belt
Transporter is delivered to hot press, and hot pressing temperature is 190~200 DEG C, and hot pressing time is 35.0~40.0S/mm, and hot pressing is used
Three sections of pressurizations, after hot-pressing processing, are made light flame-retardant board blank, then cooled down through turnover panel, cut out plate edging, stacking
Sanding processing, inspection grade and got product after being put in storage packaging after 24h.
4th, light flame-retardant fiberboard is made in process above step, according to《GB/T17657-2013 wood-based plates and face artificial
Foliation performance test method》、《LY/T1718-2007 light fiberboards》And《GB8624-2012 construction materials and product combustion
Burn grading performance》Detected etc. standard.Testing result is as shown in table 2 below.
Table 2
Embodiment 3
1st, the preparation without the enhanced adhesive of aldehyde：It is prepared from without the enhanced adhesive of aldehyde by the raw material of following parts by weight：It is aqueous
2.5~3.0 parts of 97.0~98.0 parts of polyurethane resin, acetone or ethylenediamine；Its preparation method is：By weight ratio by each group
Divide well mixed, store standby.Wherein, the waterborne polyurethane resin is milky/micro- color opaque liquid, and solids content is
22.0~23.0%, pH value is 6.2~6.4, and electric charge is anion.
2nd, the preparation of pulvis fire retardant：Pulvis fire retardant is made up of the raw material of following parts by weight：Melamine cyanurate
55.0~60.0 parts, 20.0~25.0 parts of inorganic hypo-aluminum orthophosphate, 10.0 parts of talcum powder；Its preparation method is：First match somebody with somebody by weight
Than each raw material is well mixed, it is re-fed into pulverizer and is crushed to the powder that mesh number is 300~400 mesh, granularity is 2.0~3.0 μm,
Storage is standby.
3rd, the production technology without aldehyde light flame-retardant fiberboard：After the completion of prepared by enhanced adhesive and pulvis fire retardant, press
According to the technological process of production of medium density fibre board (MDF), wood chip is peeled, screened, boiling softening after, spurted in defibrator fiber separation
Apply at pipe without the enhanced adhesive of aldehyde, resin added is 35.0~40.0kg/m3；Fiber after applying glue is dried at sorting
Reason, fiber moisture control is 8.0~9.0%, before the blanking blower fan after fiber drying whirlwind is sorted at about 1m, by setting certainly
Apply metering device addition pulvis fire retardant, applied amount is 125.0~130.0kg/m3, fiber lay down is dressed up into type with spreading machine,
Slab is through preformer precompressed, and rate control is 60.0~65.0%, after slab cuts long weigh through mitre saw side, is transported by belt
Defeated machine is delivered to hot press, and hot pressing temperature is 180~190 DEG C, and hot pressing time is 30.0~35.0S/mm, and hot pressing uses three
Section pressurization, after hot-pressing processing, is made light flame-retardant board blank, then cooled down through turnover panel, to cut out plate edging, stacking 24 small
When after sanding processing, examine grade and be put in storage pack after get product.
4th, light flame-retardant fiberboard is made in process above step, according to《GB/T17657-2013 wood-based plates and face artificial
Foliation performance test method》、《LY/T1718-2007 light fiberboards》And《GB8624-2006 construction materials and product combustion
Burn grading performance》Detected etc. standard requirement.Testing result is as shown in table 3.
Table 3
In summary, the present invention applies no aldehyde enhancing adhesive in process of production without aldehyde light fiberboard, not only solves
The problem of going to make product produce free formaldehyde in production using addition three-aldehyde glue and pollute environment and influence health of people, solves again
Traditional formaldehyde-less fiber board manufacture of having determined needs supporting addition releasing agent using addition MDI resins, is otherwise difficult to industrialization production
Technical bottleneck problem.The product being made not only reaches the environmental protection function of being discharged without free formaldehyde of wood grade,
Meet people to the environmentally friendly pursuit of an ideal of the safe green of building decoration and fitment and household material, and with lightweight is water-fast, high machine
The remarkable advantages such as tool intensity, good stability of the dimension.Apply pulvis fire retardant in dried, classified step, manufacturing process is simply easy
OK, without changing apparatus for production line, need to only add fire retardant application metering device can smoothly realize industrialization production, while because
Fire retardant uses N-P-AL compound system schemes, assigns wood fibre board excellent fire retardant performance, and flame retardant rating can reach
The fire retardant B1-B/B1-C grades or old plant B1 grades of new standard, and compared with using conventional flame retardant, given birth to more burning
Produce speed and calory burning is low, the few remarkable advantage of burning smoke.The present invention can expand product in packaging, decoration, finishing etc.
Application field, solves the inflammable dangerous of traditional lightweight fiberboard presence, and is difficult to industrialize the technology of steady production
Bottleneck problem, reaches saving wood raw material, alleviates the remarkable effects such as timber supply and demand contradiction again.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, nothing
By from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended
Claim rather than described above are limited, it is intended that will fall the institute in the implication and scope of the equivalent loins of claim
Change and include in the present invention.
Claims (6)
1. a kind of production method without aldehyde light flame-retardant fiberboard, is comprised the following steps that：Woodchip, screening, boiling are soft
Change, fiber separation, glue compounding and applying, dried, classified, shaping of mating formation, precompressed, hot pressing, turnover panel cooling, sanding, inspection grades, storage is wrapped
Dress, it is characterised in that：No aldehyde enhancing adhesive is applied with during the glue compounding and applying, applied amount is 30.0~50.0kg/m3,
Applied on defibrator process fiber blow line by gear pump；Apply pulvis fire retardant, applied amount during the dried, classified
For 120.0~135.0kg/m3, at drying duct blanking blower fan leading portion is from blower fan about 1.0m, sucked by blower fan graviational interaction
And uniform divided flows complete to apply into dry fibers storehouse.
2. a kind of production method without aldehyde light flame-retardant fiberboard according to claim 1, it is characterised in that：It is described without aldehyde
Enhanced adhesive is prepared from by the raw material of following parts by weight：95.0~99.0 parts of waterborne polyurethane resin, acetone or second two
1.0~5.0 parts of amine；Its preparation method is：Each component is well mixed by weight ratio, you can.
3. a kind of production method without aldehyde light flame-retardant fiberboard according to claim 1, it is characterised in that：The pulvis
Fire retardant is prepared from by the raw material of following parts by weight：55.0~70.0 parts of melamine cyanurate, inorganic hypo-aluminum orthophosphate
20.0~40.0 parts, 5~10.0 parts of talcum powder；Its preparation method is：First each raw material is well mixed by weight ratio, then sent
Enter pulverizer and be crushed to the powder that mesh number is 200~400 mesh, granularity is 2.0~4.0 μm, you can.
4. a kind of production method without aldehyde light flame-retardant fiberboard according to claim 3, it is characterised in that：It is described aqueous
Polyurethane resin is opaque liquid, and solids content is 20.0~25.0%, and pH value is 6.0~7.0, and electric charge is anion.
5. a kind of production method without aldehyde light flame-retardant fiberboard according to claim 1, it is characterised in that：The drying
Sorting step fiber moisture is controlled 7.5~9.5%.
6. a kind of production method without aldehyde light flame-retardant fiberboard according to claim 1, it is characterised in that：The precompressed
The control of step compresses rate is 55.0~65.0%；The hot pressing is using three sections of pressurizations, and hot pressing temperature is 170~200 DEG C, heat
The pressure time is 20.0~40.0S/mm.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109366676A (en) * | 2018-12-12 | 2019-02-22 | 大亚木业（茂名）有限公司 | A kind of manufacturing method of no aldehyde moisture-proof floor substrate |
| CN113601661A (en) * | 2021-07-02 | 2021-11-05 | 福建省永安林业(集团)股份有限公司 | Manufacturing method of high-density and high-strength plant fiber board |
| CN113815082A (en) * | 2021-08-27 | 2021-12-21 | 大亚人造板集团有限公司 | Production process of formaldehyde-free flame-retardant fiberboard |
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| CN109366676A (en) * | 2018-12-12 | 2019-02-22 | 大亚木业（茂名）有限公司 | A kind of manufacturing method of no aldehyde moisture-proof floor substrate |
| CN113601661A (en) * | 2021-07-02 | 2021-11-05 | 福建省永安林业(集团)股份有限公司 | Manufacturing method of high-density and high-strength plant fiber board |
| CN113601661B (en) * | 2021-07-02 | 2022-06-21 | 福建省永安林业(集团)股份有限公司 | Manufacturing method of high-density and high-strength plant fiber board |
| CN113815082A (en) * | 2021-08-27 | 2021-12-21 | 大亚人造板集团有限公司 | Production process of formaldehyde-free flame-retardant fiberboard |
| CN113815082B (en) * | 2021-08-27 | 2022-11-01 | 大亚人造板集团有限公司 | Production process of formaldehyde-free flame-retardant fiberboard |
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Application publication date: 20170804 |